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-rw-r--r--misc/sys/cdefs.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index e89776c2a7..2271e10fdc 100644
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -159,8 +159,13 @@
 #if defined __GNUC__ && __GNUC__ >= 2
 
 # define __REDIRECT(name, proto, alias) name proto __asm__ (__ASMNAME (#alias))
-# define __REDIRECT_NTH(name, proto, alias) \
+# ifdef __cplusplus
+#  define __REDIRECT_NTH(name, proto, alias) \
+     name proto __THROW __asm__ (__ASMNAME (#alias))
+# else
+#  define __REDIRECT_NTH(name, proto, alias) \
      name proto __asm__ (__ASMNAME (#alias)) __THROW
+# endif
 # define __ASMNAME(cname)  __ASMNAME2 (__USER_LABEL_PREFIX__, cname)
 # define __ASMNAME2(prefix, cname) __STRING (prefix) cname